Proterozoic Eon

This Eon marked many changes in the course of Earth’s life and surface, such as the first plants in the ocean, multicellular organisms, sexual reproduction, and first well preserved and obvious fossils.

Climate
Climate was beginning to get better, especially by the end of the Proterozoic Eon, which led to the Cambrian Explosion. Oxygen levels increased significantly, making way for many new complex life forms.

Life
Multi-cellular eukaryotes and ocean plants began to appear and diverse until the Ediacaran-Cambrian Boundary.

Continents
The continents Columbia, Laurentia and Rodinia were the most dominant continents for all of the Proterozoic Eon. Rocks front this eon have been found in many parts of the world, as well as plant fossils and multi-cellular bacteria fossils.